Client has an SP C220, called us in to look at it. I'm an HP/Lexmark tech, not Ricoph. All three color toner cartridge lights are flashing -- not the replace toner led, just the toner indicators. It's is HIGHLY unlikely that all three cartridges would be "nearly out" as the status monitor says - it's a fairly new printer - so we suspect something else is wrong, but I cannot locate a service manual. Any Rico techs out there that can lend a hand?

You can remove the toner cartridges and clean the end condition sensors mounted on the back of the cartridge with IPA if that doesnt work there has been issues with bad cartridges and also poor sensor connections on the td board in the printer

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After installing a new cartridge and the blinking light is on Toner Low, it means that the photoconductor is almost full and should be replaced soon. Press and release the Continue button (green button) to clear the light sequence and continue processing the print job. If the light is still blinking, replace the photoconductor kit.

TONER CHIP on CP2025 printer: This resource may help http://resources.lasertekservices.com/hp-smart-chips-overriding-this-lockout-mechanism-with-reset-chips/ Gives types of chips to use, sales in USA, and certain things to take note of. The toner reset chip replaces the original HP ID chip and is designed to be used only on refilled HP cartridges. It is not recommended to force toner cartridges to run on empty, as this can cause damage to both the printer and the toner cartridge. The reset chips are dedicated to one color only, so that user can not swap toners. As for actual physical installation, just push the new ID chip in until it clicks into place. The correctly manufactured ones should be a snug fit. I have seen techs using a drop of contact glue behind the chip-board to secure it. Copper pads face outwards towards matching printer pins. See photo for polarity 'square' pad. My printer is Samsung, not HP, so your toner cartridge may be a different shape.

You could try going into the sp modes and check sp 5052-1 this is for independent toner check if the toner cartridge was checked by the copier as empty and you refilled it the machines check of the chip still senses it empty by turning this off it could reset it for you .. I have had some mixed results sometimes it works only occasional failure.. Hope it helps Good Luck A

Black, Cyan, Magenta, and Yellow Supplies Status lights
These lights indicate when a print cartridge is low (the light is on), or empty or missing (the
light blinks). The lights also indicate when a non-HP print cartridge is installed (the light
blinks and the Attention light is on).

If you don't have a User Guide click on the link below and save it for future reference.

Seriously, buy a new printer. Companies sell toner, not printers! The printer is basically a "freebie" and is a marketing vehicle to sell toner. I tossed my C510 into the dumpster. It had four new toner cartridges. System diagnostics said that everything was at 95% or better. The printer had about 1600 prints on it. The first set of toner cartridges (full at purchase!) printed great. Then, I got dotted lines on clean prints. Or, I would get washed out, yellow tinted print and often, there was no black print. I called a printer repair shop and they laughed and told me to chuck the printer - they were suprised it lasted through the first set of cartridges. Lexmark literally "ignored me to death."

I will NEVER buy another Lexmark. The Brother and HP color lazers are probably the best bet. I have two HP B&W's that are paper pumps - an old 4V and a 6MP. The sad part is that I paid a bit more for the Lexmark than the competing HP. You live and then you learn!